Eva Gabor (February 11, 1919 ? July 4, 1995) was a Hungarian - American actress . She was born in Budapest . She was best known for her role as Lisa Douglas on the television series , Green Acres . Her elder sisters, Zsa Zsa and Magda Gabor , were also actresses and socialites. She died of pneumonia on July 4, 1995 in Los Angeles , California .